document.write( "Question 914233: Michael has 5000 to invest. He wants to invest part in an account that pays 8% interest and part into an account that pays 5% interest. How much should he invest at 5% so that the total investment earns 7% interest? \n" ); document.write( "
Algebra.Com's Answer #554959 by mananth(16946)![]() ![]() You can put this solution on YOUR website! Total amount invested = 5000 \n" ); document.write( " \n" ); document.write( "amount invested at 5.00% = x \n" ); document.write( " \n" ); document.write( "amount invested at 8.00% = 5000 -x \n" ); document.write( " \n" ); document.write( "Return on investment = 7.00% on 5000 \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "5.00% x+ 8.00% ( 5000 -x)= 7.00% * 5000 \n" ); document.write( " \n" ); document.write( "multiply by 100 \n" ); document.write( "5 x+ 8 ( 5000 -x)= 7 * 5000 \n" ); document.write( " \n" ); document.write( "5 x+ 40000 - 8 x= 35000 \n" ); document.write( "-3 x= -5000 \n" ); document.write( "/ -3 \n" ); document.write( "x=1666.67 \n" ); document.write( " \n" ); document.write( " |